Alexa Tomas works for the Favella Corporation, the largerst biochemistry company in the world. A security malfunction caused a tear in the main vault of the lab, releasing several grams of the Zeta virus and turning most of the population into zombies. Alexa's mission, together with her sidekick Pablo Ferrari, is to exterminate the zombies and to erradicate the virus. But, between battles, there's always time for a good fuck. One of those unforgettable ones that's able to bring back the dead.